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10
REPLACE SPARK PLUG
Replace the spark plug each year to ensure
the engine starts easier and runs better. Set
spark plug gap at 0.025 inch (0.6 mm). Igni-
tion timing is f ixed and nona djustable.
NOTE: This spar k i gnition system co mplies
with the Canadian st andard ICES--002.
1. T wist, then pull off spark plug boot.
2. Remove spark plug fr om cylin der and dis-
card .
3. Replace with Champion RCJ-6Y spark
plug and tighten securely with a 3/4 inch
(19 mm) socket wrench.
4. Reinst all the spark plug boot.
SERVICE AND ADJUSTMENTS
LINE REPLACEMENT
For unit to operate properly, the cutting line
should be replaced when line becomes worn
toless t han3inches inlengthfromthe edgeof
each side of the cutting head.
WARNING: Use only 0.095 inch (2.4
mm) d i amet er W EED EATER bran d cu t length
line. Never use wire, rope, string, etc. , which
can break off and become a dangerous mis-
sile.
1. Remove and discard worn line before
installing new line.
2. Clean entire surf ace of cutt ing head.
3. Insertends oflineintothetwo guideholes
on front of cutting head.
Guide
Hole
Guide
Hole
4. Continue to feed line through the guide
holes until the line is fully extended
through the side exit holes.
Side Exit Hole
Side Exit
Hole
5. Pullendsoflineuntillineis tight.Correctly
installed line will be the same length on
both ends.
REPLACING THE CUTTING HEAD
1. Align h olein thedust cupwi th thehole inthe
side ofth e gearbox b y rotating thedustcup.
2. Insert a smal l screwdri ve r into ali g ne d
holes. This will keep the shaft fro m turn ing
while removin g a nd installing tr immer head.
Screwdriver
3. While holding the screwdriver in posi tion,
remove trimmer head by turning clockwise
(looki ng from bottom of unit).
4. Thread replacement trimmer head onto the
shaft by tur ning co untercl ockwise. Tighten
until secu re.
5. Remove the screwdriver.
CARBURETOR IDLE SPEED
ADJUSTMENT
WARNING: Keep others away when
making idle speed adjustments. The trimmer
head will be spinning during this procedure.
Wear your protective eq uipmentand o bserve
all sa fety precautions.
The carburetor has been carefully set at the
factory. Adjustments maybenecessary ifyou
notice any of the following conditions:
S Engine will not idl e when t he throttle i s re-
leased .
Make adjustments with the unit support edso
the cutt ing attachment is off the ground and
will not make contact with any object. Hold
theunit byhand whilerunningandmakingad-
justments. Keep all parts of your body away
from the cutting attachment and muffler.
To adjust idle speed:
Allow enginetoidle. Adjustspeeduntilengine
runs without stalling (idle speed too slow).
S Turn idle speed screw clockwise to in-
creaseenginesp eedif enginestallsordies.
S Turn idle speed screw counterclockwiseto
decrease engine speed.